https://www.jammermfg.com/cell-phone-jammers.html Are you still looking for Radio jammer that can interfere with radios? This classic black 7-antenna desktop jammer is here. It has 7 different jamming antennas, which can interfere with CDMA, GSM, 3G, GPS L1, UHF and VHF signals, and the maximum interference distance is 10-50m. The most important thing is that all interference frequency bands only block the downlink frequency band, not the uplink frequency band, so there is no need to worry about interfering with the base station signal tower.
Suitable for conference rooms, oil and gas storage facilities and oil fields, hospitals, theaters, recording studios, banks, tender rooms, churches, conference rooms, classrooms, testing facilities, security services, military units, intelligence agencies, press conference rooms, libraries, Museums, prisons, courts, border patrol and drug enforcement, customs, condominiums, small prisons, etc. where cellular, GPS, radio, UHF, VHF signals need to be banned.
https://www.jammermfg.com/17w-gsm-3g-cell-phone-jammer-7-bands-gps-uhf-vhf-signal-scrambler.html 